51271101

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 94255200

約数和(自身を除く): 42984099

約数列:

[1, 3, 7, 9, 19, 21, 29, 49, 57, 63, 87, 133, 147, 171, 203, 211, 261, 399, 441, 551, 609, 633, 931, 1197, 1421, 1477, 1653, 1827, 1899, 2793, 3857, 4009, 4263, 4431, 4959, 6119, 8379, 10339, 11571, 12027, 12789, 13293, 18357, 26999, 28063, 31017, 34713, 36081, 42833, 55071, 80997, 84189, 93051, 116261, 128499, 196441, 242991, 252567, 299831, 348783, 385497, 589323, 813827, 899493, 1046349, 1767969, 2441481, 2698479, 5696789, 7324443, 17090367, 51271101]

約数ペア:

[(1, 51271101), (3, 17090367), (7, 7324443), (9, 5696789), (19, 2698479), (21, 2441481), (29, 1767969), (49, 1046349), (57, 899493), (63, 813827), (87, 589323), (133, 385497), (147, 348783), (171, 299831), (203, 252567), (211, 242991), (261, 196441), (399, 128499), (441, 116261), (551, 93051), (609, 84189), (633, 80997), (931, 55071), (1197, 42833), (1421, 36081), (1477, 34713), (1653, 31017), (1827, 28063), (1899, 26999), (2793, 18357), (3857, 13293), (4009, 12789), (4263, 12027), (4431, 11571), (4959, 10339), (6119, 8379)]